J.-P Poels (1987)
Some new information about the Maastrichtian phosphatic chalks of the Mons Basin (Belgium). Red. T. Krans & H. van de Laar,Heerlen,Geological Bureau,May 8-9th,1987
Meuse-Rhine Euregio Geologists Meeting, vol. p. 14.
09915, 151, Ht, HAINE, CRET, STRA, CARPHO, PHYSPHO
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